Power Button Flex with Light and Proximity Sensor for iPhone 4S Assembled

The Power Button Flex with Light and Proximity Sensor for iPhone 4S Assembled is the flex cable (P/N 921-0216-02) located at the top of the phone, under the earpiece speaker. It handles the power/sleep button and carries the ambient light and proximity sensors, which adjust brightness and turn the display off when the phone is held to your ear. It comes pre-assembled with bracket and button, ready to install.

Replace it when the power button does not respond or stays stuck, when the screen does not turn off during calls (causing accidental touches), when auto-brightness stops working, or after liquid damage or impacts to the top of the device.

Main features

• Type: power button flex cable with light and proximity sensor.
• Function: power/sleep, ambient light and proximity detection.
• Mounting: pre-assembled with bracket and button, connects to the logic board connector.
• Quality: compatible spare part, not original Apple.
• Quality control: QC Passed, tested before shipping.

iPhone 4S Power Button and Sensor Replacement

The assembled version cuts repair time and saves you from transferring the metal bracket from the old flex. With the assembled power button flex for iPhone 4S you restore both the power key and the sensors.

Assembled Power Button Flex Spare Part for iPhone 4S

Ideal for technicians and service centres who want a ready-to-use part, and for experienced DIY repairers. Discover all the details of this spare part

Compatibility

• Apple iPhone 4S – models A1387 and A1431.
• All storage sizes: 8 GB, 16 GB, 32 GB and 64 GB.
• Not compatible with iPhone 4 (A1332, A1349), iPhone 5 and later models.

Package contents

• 1 x Power Button Flex with Light and Proximity Sensor for iPhone 4S Assembled

Installation note

To reach the flex you need to remove the logic board. Always disconnect the battery first, handle the cable without sharp bends and, when refitting, make sure the proximity sensor window lines up with the opening in the front glass: misalignment causes the screen to stay on during calls.

Certifications and warranty

Every spare part passes QC Passed quality control before shipping. The product is covered by the legal warranty of conformity under Italian Legislative Decree 206/05 (Consumer Code). Replacement under warranty is possible for manufacturing defects, provided the part shows no signs of incorrect installation, breakage or accidental damage. Images are for illustration purposes only.

Official documentation

To identify your iPhone model with certainty, see the official Apple page.

For information on warranty, returns and purchase conditions, see our Terms of sale.

Note: the trademarks mentioned belong to their respective owners and are used solely to identify the compatibility of the spare part. There is no affiliation with Apple Inc.